I watched few episodes in English, then visited my parents who watched dubbed version of it. I usually dislike dub as its usually an 'audiobook' movie. But to m y surprise it was so much better.

Also its so dark (pun intended) just use stronger lighting.

Yep, same here. What a delightful TV show but understanding the actors speach which admittedly is gutteral at times was nearly impossible. It basically enforced CC for me at times.

Yes, the sound mixing in 1899 seemed uniquely bad, which is unfortunate because it’s an otherwise good and interesting sci-fi show.